caf
(Core Audio Format)
核心音频格式是由苹果开发的音频容器格式。caf 文件可以在音频旁边存储附加数据, 如文本批注、标记和其他元数据。
The Core Audio Format is a audio container format, developed by Apple. CAF files can store beside audio additional data such as text annotations, markers and other metadata.